Injection Molding Shrinkage Calculator
How to Calculate Mold Cavity Size Follow these steps to estimate accurate cavity dimensions: Enter your target part size (final product dimension) Select the appropriate plastic material Adjust the shrinkage rate if needed Click Calculate Instantly get the required mold cavity size This calculator helps engineers quickly determine cavity dimensions during the early design stage, reducing design errors and improving production accuracy. Injection Molding Shrinkage Formula The standard formula used to calculate mold size is: Mold Size = Part Size / (1 − Shrinkage Rate) Where: Part Size = desired final product dimension Shrinkage Rate = material shrinkage percentage (converted to decimal) Mold Size = required mold cavity dimension This […]
